Cenozoico By Adolfotm 65 BCE Paleoceno Period: 65 BCE to 40 BCE Paleógeno 56 BCE Eoceno 50 BCE Oligoceno Period: 40 BCE to 30 BCE Neógeno 39 BCE Mioceno 33 BCE Plioceno Period: 30 BCE to 10 BCE Cuaternario 29 BCE Pleistoceno 10 BCE Holoceno